Principia Mathematica

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Revision as of 21:19, 16 December 2014 by Regos Krang (talk | contribs) (Italicised.)

Principia Mathematica was a three-volume work on the foundations of mathematics, written by Alfred North Whitehead and Bertrand Russell.

Nyssa looked over a copy of Principia Mathematica while waiting for the Fifth Doctor to return to the TARDIS. (TV: Four to Doomsday)